| Enhanced photocatalytic activity and structural stability by hybridizing Ag(3)PO(4) nanospheres with graphene oxide sheets. | |
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MedLine Citation:
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PMID: 23080357 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Graphene oxide (GO)-Ag(3)PO(4) nanocomposites synthesized through a facile solution approach via electrostatic interaction were investigated as excellent photocatalysts for the degradation of rhodamine B (RhB) under visible light irradiation. SEM and TEM observations indicate that Ag(3)PO(4) nanospheres of ∼120 nm in diameter were well dispersed and anchored onto the exfoliated GO sheets. The characterizations of FTIR and Raman demonstrated the existence of strong charge interactions between GO sheets and Ag(3)PO(4) nanospheres. As compared to Ag(3)PO(4) nanospheres alone, the attachments of GO sheets led to a band gap narrowing (2.10 eV) and a strong absorbance in the near infrared region (NIR). The photoluminescence (PL) analysis indicates a more efficient separation of electron-hole pairs in the GO-Ag(3)PO(4) nanocomposites. Notably, the incorporation of GO sheets not only significantly enhances the photocatalytic activity but also improves the structural stability of Ag(3)PO(4). The positive synergistic effects between Ag(3)PO(4) nanospheres and GO sheets are proposed to contribute to the improved photocatalytic properties. A possible photocatalytic mechanism of the GO-Ag(3)PO(4) nanocomposites was assumed as well. The integration of these advantages enables such GO-Ag(3)PO(4) hybrid material to be a nice photocatalyst for broad applications in a sewage treatment system. |
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Authors:
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Qinghua Liang; Yao Shi; Wangjing Ma; Zhi Li; Xinmin Yang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-18 |
Journal Detail:
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Title: Physical chemistry chemical physics : PCCP Volume: - ISSN: 1463-9084 ISO Abbreviation: Phys Chem Chem Phys Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100888160 Medline TA: Phys Chem Chem Phys Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Technical Institute of Physics and Chemistry, Chinese Academy of Sciences (CAS), 29 zhongguancun East Road, Beijing, 100190, PR. China. xmyang@mail.ipc.ac.cn lizhi@mail.ipc.ac.cn. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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